2 Answers
2

It sounds like the cards RS is shipping don't have raspi-config installed. You can install it from the repository using sudo apt-get install raspi-config (you may have to run sudo apt-get update first. The package is in the http://archive.raspberrypi.org/debian/ repository.

As for the "failed to fetch..." error message when running sudo apt-get update, this is a networking issue, as the Pi isn't able to connect to the repository.

If you can get networking working, you can grab the script and any OS updates without wiping the card and writing a new image.

Can you see it when you pop your SD card into a card reader in windows?

I had a similar problem with mine and i couldn't even see the 56MB partition in windows so I just downloaded the latest OS and reflashed as per the instructions on the Pi website. After that the config file was there in windows and showed on first boot on the Pi